Smaller than your fist, your healthy heart just goes on and on. It will beat more than 60

Smaller than your fist, your healthy heart just goes on and on. It will beat more than 60 times a minute for 70 years or more. That’s something that most of us take for granted. But it’s an amazing fact.
60 times a minute for 60 minutes is 3,600 times. What physical thing can most of us do 3,600 times in one hour? Blink? Maybe. Tap our fingers on the desk? No. Jump up and down? Certainly not! But our heart keeps beating, hour after hour. Every day, it pumps almost 2,000 gallons of blood through our blood vessels(血管). It takes you about five years to drink 2,000 gallons of water.
And, unlike your knees or your back, your heart does all this work without ever complaining（抱怨）! You never know that it’s even there. Your heart is such a reliable “silent partner” that people forget to care for it. For many, the first indication（迹象）that their heart isn’t working properly is a serious heart illness! Over 650,000 Americans die of some kind of heart disease every year. Cancer kills 560,000, stroke kills 143,000, and accidents kill 118,000 Americans annually.
Like accidental deaths, many heart disease-related deaths can be avoided if people simply follow the advice of the experts. Unfortunately, most people seem to listen to a little voice in their head that says, “It won’t happen to me. ” So these people keep on smoking and drinking. They continue to eat too much meat. And their only “exercise” is getting off the sofa to get something out of the fridge. Please follow the following steps to keep your heart healthy.
【小题1】The text is most probably taken from a (an) . A．art bookB．science fiction C．healthy magazine D．psychology book【小题2】Which of the following physical activities can keep going on and on?A．Blink.B．Jump.C．Finger tap.D．Heart beat.【小题3】According to the numbers mentioned in paragraph 3, we can know . A．Accidents can be the biggest “killer” in America every year. B．In America, heart disease causes the highest death rate annually. C．Cancer causes more threat than any other diseases for Americans. D．Recently, nobody died of stroke or heart disease in America.【小题4】What do we know about our healthy hearts?A．our healthy hearts work with many complains as our knees. B．our healthy hearts can pump 3,600 gallons of blood everyday. C．our healthy hearts are smaller than our fists. D．our healthy hearts can beat 60 times in one hour.【小题5】 What do you think the next paragraph is about?A．Some tips for keeping a healthy heart.B．Some suggestions for avoiding accidental deaths. C．Some reasons for doing regular exercise.D．Some exercise for keeping a healthy lifestyle.C

(答案→)C 解析：文章主要介绍了和我们的心脏有关的一些知识，强调了它在我们生活中发挥的不可忽视的作用，并呼吁我们尽早保护心脏，而不要到时候再后悔。【小题1】主旨大意题。文章主要介绍和心脏有关的知识，倡导健康的生活方式，可知是从健康杂志上出现的文章，所以选择C【小题2】细节题。根据文章第一段your healthy heart just goes on and on，可知心跳是可以一直不停的持续下去的，所以选择D【小题3】推断题。根据第三段列举的几个数字，可知心脏病造成的死亡是美国死亡人数中占最多的，所以选择B【小题4】细节题。根据第一段的Smaller than your fist, your healthy heart just goes on and on，可知心脏比拳头还需要小，所以选C【小题5】推断题。根据文章最后一句话Please follow the following steps to keep your heart healthy.，可知接下来要介绍有关心脏健康的贴士，所以选A

和我的回答一样，看来我也对了